Dead coin!
Nope! Still working

Ok. Its zombie. Technically its still working but as a project its dead. PoW alts generalky are on the edge.
Not true. PoW alts are still alive and some of them have good value - LTC, BCH and many more...
PoW alts are alive but while the BTC is back again on ATH ..the other PoW alts are still -75$ from their previous ATH in 2017/2018 and i talk about well known coins like LTC or Monero. When we look at other less known PoW alts most are dead or struglling at few dollars daily liquidity and -90% from their ATH's... So , yes I think we can say most alts failed.